Guest Stars Vicki Lawrence as Betty Logan Fred Willard as Nil Logan Dean Butler as Brent Harper Mary Cadorette as Darlene Harper Alana Stewart as Miss Enty José Ferrer as Simon Beck David Spielberg as Marc Mercer Caren Kaye as Paula Mercer Co Starring Teri Hatcher as Amy (Love Boat Mermaid) Tori Brenno as Maria (Love Boat Mermaid) Debbie Bartlett as Susie (Love Boat Mermaid) Andrea Moen as Starlight (Love Boat Mermaid) Nanci Hammond as Jane (Love Boat Mermaid) Macarena as Sheila (Love Boat Mermaid) Beth Myatt as Mary Beth (Love Boat Mermaid) Debra Johnson as Patti (Love Boat Mermaid) Bert Rosario as Julio